641202432 has 72 divisors (see below), whose sum is σ = 1837833984. Its totient is φ = 197289984.

The previous prime is 641202409. The next prime is 641202451. The reversal of 641202432 is 234202146.

It is a super-2 number, since 2×641202432² = 822281117605429248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22128 + ... + 42095.

It is an arithmetic number, because the mean of its divisors is an integer number (25525472).

Almost surely, 2^641202432 is an apocalyptic number.

It is an amenable number.

641202432 is an abundant number, since it is smaller than the sum of its proper divisors (1196631552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641202432 is a wasteful number, since it uses less digits than its factorization.

641202432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64255 (or 64241 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 641202432 is about 25321.9752784020. The cubic root of 641202432 is about 862.3132386216.

Adding to 641202432 its reverse (234202146), we get a palindrome (875404578).

The spelling of 641202432 in words is "six hundred forty-one million, two hundred two thousand, four hundred thirty-two".